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DEFAULT

过去进行时 -
sing

翻译: 唱, 唱歌, 演唱, 啼, 鸡叫

过去进行时

I was singing


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过去进行时 (Past Continuous)

I
was singing 
you
were singing 
he/she/it
was singing 
we
were singing 
you
were singing 
they
were singing 


不定式

sing







不规则动词